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Amrute JM, Athanasiou LS, Rikhtegar F, de la Torre Hernández JM, Camarero TG, Edelman ER. Polymeric endovascular strut and lumen detection algorithm for intracoronary optical coherence tomography images. JOURNAL OF BIOMEDICAL OPTICS 2018; 23:1-14. [PMID: 29560624 PMCID: PMC5859384 DOI: 10.1117/1.jbo.23.3.036010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 02/23/2018] [Indexed: 05/03/2023]
Abstract
Polymeric endovascular implants are the next step in minimally invasive vascular interventions. As an alternative to traditional metallic drug-eluting stents, these often-erodible scaffolds present opportunities and challenges for patients and clinicians. Theoretically, as they resorb and are absorbed over time, they obviate the long-term complications of permanent implants, but in the short-term visualization and therefore positioning is problematic. Polymeric scaffolds can only be fully imaged using optical coherence tomography (OCT) imaging-they are relatively invisible via angiography-and segmentation of polymeric struts in OCT images is performed manually, a laborious and intractable procedure for large datasets. Traditional lumen detection methods using implant struts as boundary limits fail in images with polymeric implants. Therefore, it is necessary to develop an automated method to detect polymeric struts and luminal borders in OCT images; we present such a fully automated algorithm. Accuracy was validated using expert annotations on 1140 OCT images with a positive predictive value of 0.93 for strut detection and an R2 correlation coefficient of 0.94 between detected and expert-annotated lumen areas. The proposed algorithm allows for rapid, accurate, and automated detection of polymeric struts and the luminal border in OCT images.
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Affiliation(s)
- Junedh M. Amrute
- California Institute of Technology, Division of Biology and Biological Engineering, Pasadena, California, United States
- Massachusetts Institute of Technology, Institute for Medical Engineering and Sciences, Cambridge, Massachusetts, United States
| | - Lambros S. Athanasiou
- Massachusetts Institute of Technology, Institute for Medical Engineering and Sciences, Cambridge, Massachusetts, United States
- Brigham and Women’s Hospital, Harvard Medical School, Cardiovascular Division, Boston, Massachusetts, United States
- Address all correspondence to: Lambros S. Athanasiou, E-mail:
| | - Farhad Rikhtegar
- Massachusetts Institute of Technology, Institute for Medical Engineering and Sciences, Cambridge, Massachusetts, United States
| | - José M. de la Torre Hernández
- Hospital Universitario Marques de Valdecilla, Unidad de Cardiologia Intervencionista, Servicio de Cardiologia, Santander, Spain
| | - Tamara García Camarero
- Hospital Universitario Marques de Valdecilla, Unidad de Cardiologia Intervencionista, Servicio de Cardiologia, Santander, Spain
| | - Elazer R. Edelman
- Massachusetts Institute of Technology, Institute for Medical Engineering and Sciences, Cambridge, Massachusetts, United States
- Brigham and Women’s Hospital, Harvard Medical School, Cardiovascular Division, Boston, Massachusetts, United States
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